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This reduces the number of times we need to ask for more packets,
and as a result we get a fairly large boost in performance,
especially with HTTP/1.1.

Unfortunately this makes Cowboy require at least Erlang/OTP 21.3+
because the ssl application did not have active,N. For simplicity
the version required will be Erlang/OTP 22+.

In addition this change improves hibernate handling in
cowboy_websocket. Hibernate will now work for HTTP/2 transport
as well, and stray or unrelated messages will no longer cancel
hibernate (the process will handle the message and go back into
hibernation).

Thanks go to Stressgrid for benchmarking an early version of this
commit: https://stressgrid.com/blog/cowboy_performance_part_2/
This commit is contained in:
Loïc Hoguin 2019-12-04 11:17:34 +01:00
parent 592029070d
commit db0d6f8d25
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9 changed files with 208 additions and 65 deletions
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@ -29,10 +29,10 @@ dep_gun = git https://github.com/ninenines/gun master
dep_ci.erlang.mk = git https://github.com/ninenines/ci.erlang.mk master
DEP_EARLY_PLUGINS = ci.erlang.mk
AUTO_CI_OTP ?= OTP-LATEST-20+
AUTO_CI_OTP ?= OTP-LATEST-22+
AUTO_CI_HIPE ?= OTP-LATEST
# AUTO_CI_ERLLVM ?= OTP-LATEST
AUTO_CI_WINDOWS ?= OTP-LATEST-20+
AUTO_CI_WINDOWS ?= OTP-LATEST-22+
# Standard targets.